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Sources of Radiation
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absorption band amplifier angle arrangement bandwidth beam black body bolometers bromide calibration carrier cesium Chapter chopper circuit condensed constant crystals curve detector diffraction dispersion effect electrical electron emission equation examined exit slit films filter flicker noise fluoride focal frequency germanium glass Globar Golay Golay cell grating illumination impedance infrared input InSb Instr instrument intensity Johnson noise junction layer limit lithium fluoride London materials measure metal mirror monochromator Nernst obtained optical output p-n junction PbS cells PbTe cells photoconductive photoconductive cells photon Phys Physik Plyler polarization practical prism Proc proportional radiant flux radiant power radiation noise ratio reference reflection refractive index region relatively resistance rock salt room temperature sample scanning semiconductors short wavelength shown in Fig signal spectral range spectral response spectrometer spectrum surface technique thermal thermocouple thermopile thickness tion transmission tube voltage watts wavelength width window